Composition:

• Suction and delivery manifolds;
• Check valve for each pump;
• Ball valves with nozzle;
• Connection for pump;
• Radial pressure gauge;
• Electrical panel;
• Pre-set pressure switch.

Control panel composition:

• ABS housing, IP 55;
• General circuit breaker with locking device;
• Mains power:
  • 1 x 230 V, single-phase; 
  • 3 x 400 V, three-phase.
• Relay control pressure (no bounce) and level float;
• Pump fuses;
• Auxiliary fuses;
• Pump operating switches (auto/off/manual; manual mode momentary only );
• Green LEDs indicating power on automatically 2nd operating mode, pumps running;
• Red LEDs for low or high water level warning, pump overload protection;
• Adjustable electronic pump overload protection;
• Safety reset button;
• Built-in pump switching circuit;
• Pump shutdown in case of malfunction.

Pump switching functions:

• Prevents the pumps from starting at the same time, which causes high inrush currents (otherwise, when the mains is restored after interruptions caused by mains work or manual shutdowns, the pumps will start to work  at the same time, with maximum power input);
• Prevents (through delays) pumps from switching over caused by pressure peaks, water hammer.